import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken, setToken, getCook, removeToken } from '@/utils/auth' // get token from cookie
import qs from 'qs'
const service = axios.create({
    timeout: 5000000,
    withCredentials: true,
    crossDomain: true

})

service.defaults.withCredentials = true
    // request interceptor
service.interceptors.request.use(



    config => {

        // 

        // do something before request is sent


        // let user=null;
        // try {

        //    user=JSON.parse(getCook("user")); 

        //   if(user==null)
        //   {
        //     removeToken();
        //   }
        // } catch (error) {
        //   // remove token and go to login page to re-login 
        //   //用户登录数据丢失，重新登录
        //   removeToken();

        // }

        // if (user) {
        // let each request carry token
        // ['X-Token'] is a custom headers key
        // please modify it according to the actual situation
        config.headers['X-Token'] = getToken()
            // config.headers.post['Content-Type'] = 'application/x-www-form-urlencoded'

        // 兼容 post 跨域问题
        if (config.method === 'post') {
            // 修改 Content-Type
            config.headers['Content-Type'] = 'application/x-www-form-urlencoded' // 关键所在

            // 将对象参数转换为序列化的 URL 形式（key=val&key=val）
            // config.data = qs.stringify(config.data)

            // 将对象参数转换为序列化的 URL 形式（key=val&key=val）
            // config.data = qs.stringify(config.data)

            if (config.upload) {
                config.headers['Content-Type'] = 'multipart/form-data' // 上传文件
            } else {
                config.transformRequest = [function(data) {
                    return qs.stringify(data) // 使用Qs将请求参数序列化
                }]
            }
        }
        // }
        return config
    },
    error => {
        // do something with request error
        console.log(error) // for debug
        return Promise.reject(error)
    }
)

// response interceptor
service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
     */

    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
        const res = response.data

        console.log(res)

        // if the custom code is not 20000, it is judged as an error.
        // if (res.code !== 20000) {
        //   Message({
        //     message: res.msg || '错误',
        //     type: 'error',
        //     duration: 5 * 1000
        //   })

        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        //   if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        //     // to re-login
        //     MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
        //       confirmButtonText: 'Re-Login',
        //       cancelButtonText: 'Cancel',
        //       type: 'warning'
        //     }).then(() => {
        //       store.dispatch('user/resetToken').then(() => {
        //         location.reload()
        //       })
        //     })
        //   }
        //   return Promise.reject(new Error(res.message || 'Error'))
        // } else {
        //   return res
        // }

        return res

    },
    error => {
        console.log('err' + error) // for debug
        Message({
            message: error.message,
            type: 'error',
            duration: 5 * 1000
        })
        return Promise.reject(error)
    }
)

export default service